Power banks all look alike on a shelf, but four specs decide whether you will love or regret the purchase.
1. Capacity that matches your day
A 5,000mAh slim bank tops up a phone once. A 10,000mAh unit is the sweet spot for daily use, charging most phones twice while staying pocketable. If you carry a laptop or travel often, a 20,000 to 25,000mAh unit like the EKR T199LP keeps everything alive for a full day.
2. Output wattage
Wattage decides speed. 20W covers any iPhone at full speed. 45W fast-charges flagship Androids and small tablets. 100W output, found on the T199LP, charges a MacBook Pro at nearly wall speed.
3. Qi2 and magnetic charging
Qi2 is the new magnetic wireless standard backed by Apple and Samsung. A Qi2 bank snaps onto the phone perfectly aligned and delivers 15W wirelessly, with no cable to forget. Our WS-Q006LF and K083B are built around it.
4. Airline rules
Batteries up to 100Wh (roughly 27,000mAh) are allowed in carry-on luggage worldwide. Every EKR power bank stays under that limit, so you can fly with any of them.
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